/**
 * B2 Radio - 收音机密码查询插件样式
 * 设计风格匹配 vwodis.com B2 主题
 */

.b2-radio-container {
    max-width: 640px;
    margin: 20px auto;
    font-family: Inter, "HarmonyOS Sans", -apple-system, "system-ui", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #222;
}

.b2-radio-box {
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 2px;
    padding: 30px 28px;
}

.b2-radio-info h3 {
    font-size: 18px;
    margin: 0 0 8px;
    font-weight: 700;
    color: #222;
}

.b2-radio-info p {
    font-size: 13px;
    color: #888;
    margin: 0 0 24px;
    line-height: 1.6;
}

.b2-radio-form {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.b2-radio-input {
    flex: 1;
    min-width: 180px;
    max-width: 400px;
    height: 42px;
    padding: 0 14px;
    font-size: 14px;
    border: 1px solid #d9d9d9;
    border-radius: 2px;
    background: #fff;
    color: #222;
    outline: none;
    transition: border-color 0.2s ease;
    box-sizing: border-box;
}

.b2-radio-input:focus {
    border-color: #000;
    box-shadow: none;
}

.b2-radio-input::placeholder {
    color: #bbb;
}

.b2-radio-select {
    flex: 1;
    min-width: 180px;
    max-width: 400px;
    height: 42px;
    padding: 0 32px 0 14px;
    font-size: 14px;
    border: 1px solid #d9d9d9;
    border-radius: 2px;
    background: #fff;
    color: #222;
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s ease;
    box-sizing: border-box;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%23666' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.b2-radio-select:focus {
    border-color: #000;
}

.b2-radio-button {
    height: 42px;
    padding: 0 28px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid #000;
    border-radius: 2px;
    background: #000;
    color: #eaff00;
    cursor: pointer;
    transition: opacity 0.2s ease;
    white-space: nowrap;
}

.b2-radio-button:hover {
    opacity: 0.85;
}

.b2-radio-button:active {
    opacity: 0.7;
}

.b2-radio-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.b2-radio-result {
    margin-top: 20px;
    padding: 20px;
    border: 1px solid #e5e5e5;
    border-radius: 2px;
    background: #fafafa;
    animation: b2FadeIn 0.3s ease;
}

.b2-radio-result-success {
    border-color: #7bb32e;
    background: #f6faf1;
}

.b2-radio-result-error {
    border-color: #ff3e3e;
    background: #fef7f7;
}

.b2-radio-code-display {
    font-size: 36px;
    font-weight: 900;
    letter-spacing: 6px;
    margin: 8px 0;
    color: #000;
    word-break: break-all;
}

.b2-radio-code-label {
    font-size: 12px;
    color: #999;
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.b2-radio-code-source {
    font-size: 11px;
    color: #bbb;
    margin-top: 8px;
}

.b2-radio-multi-results {
    text-align: left;
}

.b2-radio-multi-results .b2-radio-result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}

.b2-radio-multi-results .b2-radio-result-item:last-child {
    border-bottom: none;
}

.b2-radio-multi-results .b2-radio-code-value {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 3px;
    color: #000;
}

.b2-radio-multi-results .b2-radio-source-badge {
    font-size: 11px;
    background: #f5f5f5;
    color: #999;
    padding: 2px 8px;
    border-radius: 2px;
}

.b2-radio-loading {
    margin-top: 16px;
    font-size: 13px;
    color: #888;
}

.b2-radio-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #e5e5e5;
    border-top-color: #000;
    border-radius: 50%;
    animation: b2Spin 0.6s linear infinite;
    vertical-align: middle;
    margin-right: 8px;
}

.b2-radio-examples {
    margin-top: 20px;
    color: #bbb;
    font-size: 12px;
}

.b2-radio-example-link {
    cursor: pointer;
    color: #888;
    text-decoration: underline;
    transition: color 0.2s;
}

.b2-radio-example-link:hover {
    color: #000;
}

.b2-radio-hint {
    margin-top: 8px;
    font-size: 12px;
    color: #bbb;
}

@keyframes b2FadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes b2Spin {
    to { transform: rotate(360deg); }
}

/* 响应式 */
@media (max-width: 480px) {
    .b2-radio-box {
        padding: 20px 14px;
    }

    .b2-radio-form {
        flex-direction: column;
        align-items: stretch;
    }

    .b2-radio-input,
    .b2-radio-select {
        width: 100%;
        max-width: 100%;
    }

    .b2-radio-button {
        width: 100%;
        justify-content: center;
    }

    .b2-radio-code-display {
        font-size: 26px;
        letter-spacing: 3px;
    }
}